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bixtya [17]
3 years ago
7

I need help with this thank you

Mathematics
1 answer:
kari74 [83]3 years ago
8 0

1= 5/4

2= -103/40

1st explanation

-12/15 + 4/5 + 7/12

-8 + 48 + 35/60

75/60

5/4

2nd explanation

-1 3/5 + 5 1/8 - 6 1/10

-8/5 + 41/8 + 61/10

- 64 + 205 + 244 / 40

-103/140

-103 / 40

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vladimir1956 [14]

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Help me please, Find a, b, and c.
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Answer:

a = 6*\sqrt{3}

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c = 6\sqrt{2}

Step-by-step explanation:

Since the triangles are right triangles with 60 and 45 degree angles, their side lengths follow special triangles.

A 45-45-90 right triangle has side lengths 1-1-\sqrt{2}.

A 30-60-90 right triangle has side lengths 1 - \sqrt{3} -2.

Starting with the top triangle which has a 60 degree angle, its side length 6 corresponds to a side length of 1 in the special triangle. It is 6 times bigger so its remaining sides will be 6 times bigger too.

Side a corresponds to side length \sqrt{3}. Therefore, a = 6*\sqrt{3}.

Side b corresponds to side length 2, b = 2*6 = 12.

The bottom triangle has a 45 degree angle, its side length b= 12 corresponds to \sqrt{2}. This means \sqrt{2} was multiplied by 12 = \sqrt{2} * \sqrt{72}. This means that side c is \sqrt{72}=6\sqrt{2}.

3 0
3 years ago
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2Y - 1.7 =3.3 <br><br> HELP !!!!!
bogdanovich [222]

Answer:

2.5

Step-by-step explanation:

Simplifying

2y + -1.7 = 3.3

Reorder the terms:

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Solving

-1.7 + 2y = 3.3

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '1.7' to each side of the equation.

-1.7 + 1.7 + 2y = 3.3 + 1.7

Combine like terms: -1.7 + 1.7 = 0.0

0.0 + 2y = 3.3 + 1.7

2y = 3.3 + 1.7

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Divide each side by '2'.

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Setler79 [48]
<span>given that P(x) --->p(x+6)+3
</span>
∴ x will become x+6
and P(x+6) will become P(x+6)+3
<span />
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OR by another words, we need to make axis translations from (0,0) to (-6,3)

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a climber starts descending from 504 feet above sea level and keeps going until she gets to 40 feet below sea level, how may fee
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Answer:

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|504| +|-40|=544

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